In Boston's old neighborhood of Jamaica Plain, the tracks of the Heath Street line lie unused between the hospital and the pond. Our music project began in the local bars, where Boston songwriter Scott Fruhan and Alaskan fingerstyle guitarist Karl Huth, then students at Harvard, began to craft a vivid, lyrical folk sound with catchy pop instrumentation. With both musicians now in New York City, Heath Street tells the stories of the paths trodden by millions of city-dwellers in changing neighborhoods. The…